Roofing



1,642,148 H. l.. GUY

ROOFING Sept.` 13, 1927.

Filed April 30, 1927 Patented Sept. 13, 1927.

UNITED nsra- TES uma L. GUY, or emesso, rumors,

ABSIGNOB F ONE-HALF T0 CHARLES B.

P'UVBNELL, 0F OAX PABX, ILLINOIS.

noornre.

-appmannm mea April ao, m1. serial nu. lawns.

M invention relates to roofing, anld more specifically to an improvementin that type of roofing in which a plurality of exible pieces of roofingare.v interlocked with4 each other as they are laid.

Among the objects and advantages of the invention'may be enumerated anextensionL of the iield `of `use of rooting elements aci cording to myprior Patent No. 1,469,041=

lo September 23, 1923. f l,

In the accompanying drawings,

Figure 1 is a plan diagram of a strip of rooiing material indicating howit may be cut into shingles according to the invention 1: without anywaste; i

i Figure 2 is a diagram indicating the laying of such shinglesto form acomplete roof covering; and

Figure 3 is a perspective view of a single 'l0 shingle. f

In the embodiment -of the inventionaselected for illustration, I havedeparted from the relatively exact keystone shape of my prior patent tothe extent of providing verl5 tical sides at 10 for a short distance atthe lower portion of the shingle, and.y vertical sides at 12 for a shortdistance at the upper end of the shingle.l The intervening portion hasto slope outwardl at 14 at a somewhat steeper angle than t at of theshingle considered as a whole, to compensatev for the use of thevertical portions 10 and 12.

At the bottom corners of the shingle, I provide locking tabs 16.l Theprovision of these tabs necessitates the formation of notches at 18 atthe upper corners of the shingle.

At the bottom of the iaring central portion, I provide short shoulders20, and the symmetry of the shingle requires the pres- 4o ence ofcorresponding shoulders 22- at the v top of the` flaring portion. Inlaying a complete roof covering made up of shingles accordingto theinvention, the vertical por,-y

tions 12 of adjacent shingles in the same course are positioned inabutment as indicated at 24 in'Figure 2. `The tabs 16 of the shingles inthe next course are ,then hooked under the shoulders 20 in the coursealready laid. The shingles in the thirdv course are then placedvertically above those inthe rst course, being interlocked with theshingles in the second course in precisely the same way. In the finishedroof the exposed area of leach shingle' is a perfect rectangle,

as indicated by the dotted line 26 in Figure vertical space between saidtabs andthe adp jacent shoulders determining the vertical 3.' Bysuitably proportioning the vertical` distance between the locking tabs16 and the -shoulders'20, the complete roof covering may j be laid sothat no'portion of the roof is protected by less than two thicknesses ofmaterial.

/ Witiout Ifurther elaboration, the foregoing will so full explain thegist of my 1nvention that ot ers may, by applying current knowledge,readily adapt the same for use -lunder variousv conditions of service.Moreover, it is not indispensable that all the features of the inventionbe employed lin conjunction, as they may advantageously. be embodied invarious combinations and subcombinations.

What I claim is 1. A shingle having the genera'l shape of a keystone;andvhaving an upper portion with short vertical side edges, and a lowerportion with short vertical slde edges; the middle portion betweenhaving diagonal side edges flared more than the taper of the -shingle asa whole, to compensate for the vertical portions; the contour of t-heshingle side above the center line being a reversed duplicate of thatbelow, whereby the shingles can be cut from a continuous strip withoutany waste; notches in the extreme upper corners of the shingle andlocking tabs at the extreme rlower corners, said notches leaving thenecessary material to form said tabs; and horizontal shoulders joiningsaid flared portion to said vertical portions; the

spacing between'successive rows of shin les on the completed roof, andbeing such t at no area of the finished roof will be covered by lessthan two thicknesses of material. 95 2. A shingle having the generalshape of a keystone; and havmg an upper portion with short vertical sideedges, and a lower portion with short vertical side edges; the middleportion between having diagonal sidel edges flared more than the taperof the shin le as a whole, to' compensate for the vertical portions; thecontour of the shingle vside above the center line being a reversedduplicate of that below, whereby the shingles can be cut from acontinuous strip without any waste; notches in the extreme upper cornersof the 'shingle and locking tabs at the extreme lower corners, saidnotches leaving the' necessary material to no form said tabs; andhorizontal: shoulders joining said flared portion to said verticalportions; the vertical ace between said tabs and the adjacent s ouldersbelng approximately one-third the height oi theeng tire shin le.

a keystone; and havmg an upper` portion with vertical side edges, and alower portion with vertical side edges; the middle ortion between havingdlagonal side e ges flared more than the taper of the shingle asa'whole, to compensate for the vertical portions; the contour of theshin le side above the center line being af reverse duplicate of thatbelow, whereby the shingles can be cut from a continuous strip withoutany'waste; notches in the extreme u per corners of the shingle andlocking ta s at the extreme lower corners, said notches leaving thenecessary material to form said tabs;-

and horizontal shoulders joining said ared portion to said verticalportions; the vertical space between said tabs and the adjacentshoulders determining the verticlal spacing between successive rows oshingles on the completed root, and being substan- 3. As ingle havingtheggeneral shape of.

Kwhole, to compensate for the vertlcal tiallrt7 one-third of `a distanceequal to the vertlcal dimension of the shingle minus the verticaldimension of said notches.

4. A shingle having the general shape of a keystone; and having an upperportion with vertical side edges, and a lower portionwith vertical sideedges; the middle portion between having diagonal side edges flaredvmore than the taper of the shingle as a. 01",l tions; the contour oftheshingle side a ove the center line bein a reversed duplicate of* thatbelow, where y the shingles'can be cut from a continuous strip withoutany waste; notches in the extreme u per corners of the shingle andlocking ta s at the extreme lower corners, said notches leaving thenecessary material to form said tabs;

v l and .horizontal shoulders joining said flared portion to saidverticalportions; the ver-

